They're ANNOYING AS HELL during your first days, but once you learn the tricks (sell cheap junk, stick to 102-103% pricing), litte girls will gladly come back over and over and over. THEN you can rip off these litte brats.

Louie is dumb, but he is a good buyer (if a bit hard to attract to the store). Charme only sells crap, and rarely buys anything. Nagi is a excellent buyer, but rarely sells. Don't expect getting rich from Calliou. Elan and Tielle aren't that easy. Arma is the perfect customer - no questions asked, she will just drop the cash quickly. Griff... meh.

Allouette gladly pays obscene pricetags without complaining, but she rarely buys anything of great value, so... meh. Prime can get very VERY annoying at times, even worse than litte girls.

The other recurrent customers (old mans, conventional mens, housewives) are hardly remarkable. From time to time the Guild Master will sell really cool merchandise, but it's Artificial Stupidity(TM) baffles my mind.

And of course we all agree that the worst is Euria. Fortunately it's easy to keep her away - just make the store decoration fugly for her tastes.